Not sure which 2004 Dodge Ram In-Line Modules are right for you? We have over 1502 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:

"FROM THE MOMENT I INSTALLED THE PCM I COULD TELL A BIG GAIN IN POWER AND IT HELPS ALOT WHEN PULLING A TRAILOR.
THE ONLY THING THAT I HAVE NOT NOTICED IS A CHANGE IN FUEL MILEAGE BUT OVERALL THE PCM IS WELL WORTH THE TIME AND MONEY." —Dennis M from Sulphur, LA bought a Jet Performance Module for a 2004 Dodge Ram, 4.7L V8.

"the chip, coupled with new intake, exhast, and thermostat created a lower gas mileage and an increase in power" —Andrew H from Ft. Benning, GA bought a Jet Performance Module for a 2004 Dodge Ram.

"I purchased the stage 2, along with a Gibson 3" cat back exhaust and S&B cold air intake, I really feel the improvement in the low to medrange, I have yet to pull my trailer, but I am certain the power will be there when I call on it. For the money and the speedy response from AutoAnything I would go to them again for my shopping needs. Owen" —Owen J from Lake Orion, MI bought a Jet Performance Module for a 2004 Dodge Ram.

"Installation was very straight forward and only took a few minutes. Power and economy increases are both immediately evident." —Dale L from Cypress, TX bought an Edge EZ Performance Module for a 2004 Dodge Ram, 5.9L Cummins 600 Series.

"The JET Performance Module is the way to go. You don't have to mess with programming, just plug it in and enjoy. Hook-up was quick and easy. The chip along with my K&N air intake make an excellent combo." —Nicholas D from Marshfield, MO bought a Jet Performance Module for a 2004 Dodge Ram.

"Overall I am happy with this product. I think all programmers are overpriced anywhere you buy them from but love the price matching autoanything.com stands by." —Brandon V from Zeeland, MI bought an Edge Juice with Attitude CS or CTS for a 2004 Dodge Ram, 5.9L Cummins, HO (305 hp).

"This unit was very easy to install and with the in the cab selector switch it makes it a breeze to switch the settings
Has huge gains in torque" —Michael H from Granbury, TX bought an Edge EZ Performance Module for a 2004 Dodge Ram.

"Module definitely helped on gas pedal response, but I didn't notice a lot of difference when ascending up hills. Nor have I noticed an increase in gas mileage, but then I haven't taken a long ride with it since I had it installed." —William P from Whitehall, MT bought a Jet Performance Module for a 2004 Dodge Ram, 5.7L Hemi.

"My truck is a 2004,built in feb, but my motor numbers didn't match the part#. I called the edge people and they told me I had a 2004and1/2. I ordered the 04 and1/2 to 06 module. Its was easy to install,and works great. All kinds of power,so the next day I took the truck in and had a shift kit installed. Made me feel alot better." —Don S from Carlton, OR bought an Edge Juice with Attitude CS or CTS for a 2004 Dodge Ram.